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[POWERPC] Use generic compat_sys_ptrace

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This replaces powerpc's compat_sys_ptrace with a compat_arch_ptrace and
enables the new generic definition of compat_sys_ptrace instead.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Roland McGrath 2007-12-20 03:58:55 -08:00 committed by Paul Mackerras
parent 1d48d71c06
commit 81e695c026
2 changed files with 7 additions and 28 deletions
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33
arch/powerpc/kernel/ptrace32.c
View file

@ -85,33 +85,13 @@ static long compat_ptrace_old(struct task_struct *child, long request,
return ret;
}
long compat_sys_ptrace(int request, int pid, unsigned long addr,
unsigned long data)
long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
compat_ulong_t caddr, compat_ulong_t cdata)
{
struct task_struct *child;
unsigned long addr = caddr;
unsigned long data = cdata;
int ret;
lock_kernel();
if (request == PTRACE_TRACEME) {
ret = ptrace_traceme();
goto out;
}
child = ptrace_get_task_struct(pid);
if (IS_ERR(child)) {
ret = PTR_ERR(child);
goto out;
}
if (request == PTRACE_ATTACH) {
ret = ptrace_attach(child);
goto out_tsk;
}
ret = ptrace_check_attach(child, request == PTRACE_KILL);
if (ret < 0)
goto out_tsk;
switch (request) {
/*
* Read 4 bytes of the other process' storage
@ -375,9 +355,6 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
ret = compat_ptrace_request(child, request, addr, data);
break;
}
out_tsk:
put_task_struct(child);
out:
unlock_kernel();
return ret;
}

2
include/asm-powerpc/ptrace.h
View file

@ -55,6 +55,8 @@ struct pt_regs {
#ifdef __powerpc64__
#define __ARCH_WANT_COMPAT_SYS_PTRACE
#define STACK_FRAME_OVERHEAD 112 /* size of minimum stack frame */
/* Size of dummy stack frame allocated when calling signal handler. */